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From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Cc: david@fromorbit.com, Dave Chinner <dchinner@redhat.com>,
	Brian Foster <bfoster@redhat.com>,
	"Darrick J . Wong" <darrick.wong@oracle.com>
Subject: [PATCH 8/8] xfs: remove some stale comments from the log code
Date: Wed, 25 Mar 2020 19:43:05 +0100	[thread overview]
Message-ID: <20200325184305.1361872-9-hch@lst.de> (raw)
In-Reply-To: <20200325184305.1361872-1-hch@lst.de>

From: Dave Chinner <dchinner@redhat.com>

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/xfs/xfs_log.c | 59 +++++++++++-------------------------------------
 1 file changed, 13 insertions(+), 46 deletions(-)

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 95e1174bf3c5..ed8296f8b887 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -463,14 +463,6 @@ xfs_log_reserve(
 	return error;
 }
 
-
-/*
- * NOTES:
- *
- *	1. currblock field gets updated at startup and after in-core logs
- *		marked as with WANT_SYNC.
- */
-
 static bool
 __xlog_state_release_iclog(
 	struct xlog		*log,
@@ -1909,7 +1901,7 @@ xlog_dealloc_log(
 	log->l_mp->m_log = NULL;
 	destroy_workqueue(log->l_ioend_workqueue);
 	kmem_free(log);
-}	/* xlog_dealloc_log */
+}
 
 /*
  * Update counters atomically now that memcpy is done.
@@ -2452,14 +2444,6 @@ xlog_write(
 	return error;
 }
 
-
-/*****************************************************************************
- *
- *		State Machine functions
- *
- *****************************************************************************
- */
-
 static void
 xlog_state_activate_iclog(
 	struct xlog_in_core	*iclog,
@@ -2820,7 +2804,7 @@ xlog_state_done_syncing(
 	 */
 	wake_up_all(&iclog->ic_write_wait);
 	spin_unlock(&log->l_icloglock);
-	xlog_state_do_callback(log);	/* also cleans log */
+	xlog_state_do_callback(log);
 }
 
 /*
@@ -2940,13 +2924,14 @@ xlog_state_get_iclog_space(
 
 	*logoffsetp = log_offset;
 	return 0;
-}	/* xlog_state_get_iclog_space */
+}
 
 /*
- * The first cnt-1 times through here we don't need to move the grant write head
- * because the permanent reservation has reserved cnt times the unit amount.
- * Release part of current permanent unit reservation and reset current
- * reservation to be one units worth.  Also move grant reservation head forward.
+ * The first cnt-1 times a ticket goes through here we don't need to move the
+ * grant write head because the permanent reservation has reserved cnt times the
+ * unit amount.  Release part of current permanent unit reservation and reset
+ * current reservation to be one units worth.  Also move grant reservation head
+ * forward.
  */
 void
 xfs_log_ticket_regrant(
@@ -3028,12 +3013,8 @@ xfs_log_ticket_ungrant(
 }
 
 /*
- * Mark the current iclog in the ring as WANT_SYNC and move the current iclog
- * pointer to the next iclog in the ring.
- *
- * When called from xlog_state_get_iclog_space(), the exact size of the iclog
- * has not yet been determined, all we know is that we have run out of space in
- * the current iclog.
+ * This routine will mark the current iclog in the ring as WANT_SYNC and move
+ * the current iclog pointer to the next iclog in the ring.
  */
 STATIC void
 xlog_state_switch_iclogs(
@@ -3078,7 +3059,7 @@ xlog_state_switch_iclogs(
 	}
 	ASSERT(iclog == log->l_iclog);
 	log->l_iclog = iclog->ic_next;
-}	/* xlog_state_switch_iclogs */
+}
 
 /*
  * Write out all data in the in-core log as of this exact moment in time.
@@ -3285,13 +3266,6 @@ xfs_log_force_lsn(
 	return ret;
 }
 
-/*****************************************************************************
- *
- *		TICKET functions
- *
- *****************************************************************************
- */
-
 /*
  * Free a used ticket when its refcount falls to zero.
  */
@@ -3448,13 +3422,6 @@ xlog_ticket_alloc(
 	return tic;
 }
 
-
-/******************************************************************************
- *
- *		Log debug routines
- *
- ******************************************************************************
- */
 #if defined(DEBUG)
 /*
  * Make sure that the destination ptr is within the valid data region of
@@ -3540,7 +3507,7 @@ xlog_verify_tail_lsn(
 	if (blocks < BTOBB(iclog->ic_offset) + 1)
 		xfs_emerg(log->l_mp, "%s: ran out of log space", __func__);
     }
-}	/* xlog_verify_tail_lsn */
+}
 
 /*
  * Perform a number of checks on the iclog before writing to disk.
@@ -3643,7 +3610,7 @@ xlog_verify_iclog(
 		}
 		ptr += sizeof(xlog_op_header_t) + op_len;
 	}
-}	/* xlog_verify_iclog */
+}
 #endif
 
 /*
-- 
2.25.1


  parent reply	other threads:[~2020-03-25 18:50 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-25 18:42 xfs: clean up log tickets and record writes v4 Christoph Hellwig
2020-03-25 18:42 ` [PATCH 1/8] xfs: don't try to write a start record into every iclog Christoph Hellwig
2020-03-26  4:49   ` Darrick J. Wong
2020-03-26 11:09   ` Brian Foster
2020-03-25 18:42 ` [PATCH 2/8] xfs: re-order initial space accounting checks in xlog_write Christoph Hellwig
2020-03-25 18:43 ` [PATCH 3/8] xfs: refactor and split xfs_log_done() Christoph Hellwig
2020-03-25 18:43 ` [PATCH 4/8] xfs: kill XLOG_TIC_INITED Christoph Hellwig
2020-03-25 18:43 ` [PATCH 5/8] xfs: split xlog_ticket_done Christoph Hellwig
2020-03-25 18:43 ` [PATCH 6/8] xfs: merge xlog_commit_record with xlog_write_done Christoph Hellwig
2020-03-25 18:43 ` [PATCH 7/8] xfs: refactor unmount record writing Christoph Hellwig
2020-03-25 18:43 ` Christoph Hellwig [this message]
  -- strict thread matches above, loose matches on Subject: below --
2020-03-24 17:44 xfs: clean up log tickets and record writes v3 Christoph Hellwig
2020-03-24 17:44 ` [PATCH 8/8] xfs: remove some stale comments from the log code Christoph Hellwig
2020-03-24 20:42   ` Darrick J. Wong

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